Log Message:
youtube-dl: Update to 20190318

Changes:
version 2019.03.18

Core
* [extractor/common] Improve HTML5 entries extraction
+ [utils] Introduce parse_bitrate
* [update] Hide update URLs behind redirect
* [extractor/common] Fix url meta field for unfragmented DASH formats (#20346)

Extractors
+ [yandexvideo] Add extractor
* [openload] Improve embed detection
+ [corus] Add support for bigbrothercanada.ca (#20357)
+ [orf:radio] Extract series (#20012)
+ [cbc:watch] Add support for gem.cbc.ca (#20251, #20359)
- [anysex] Remove extractor (#19279)
+ [ciscolive] Add support for new URL schema (#20320, #20351)
+ [youtube] Add support for invidiou.sh (#20309)
- [anitube] Remove extractor (#20334)
- [ruleporn] Remove extractor (#15344, #20324)
* [npr] Fix extraction (#10793, #13440)
* [biqle] Fix extraction (#11471, #15313)
* [viddler] Modernize
* [moevideo] Fix extraction
* [primesharetv] Remove extractor
* [hypem] Modernize and extract more metadata (#15320)
* [veoh] Fix extraction
* [escapist] Modernize
- [videomega] Remove extractor (#10108)
+ [beeg] Add support for beeg.porn (#20306)
* [vimeo:review] Improve config url extraction and extract original format
  (#20305)
* [fox] Detect geo restriction and authentication errors (#20208)